There are many cards for Nissan consult series, what are they used for?

If you want to use Nissan Consult 4 to make keys, then you need to buy Security Card. If you want to use Nissan Consult 4 to program, you need to buy Reprogramming Card. If you want to use Nissan Consult 4 to work on GTR car models, you need to buy GTR Card.

If you only want to use the diagnose function, then you do not need to buy the cards.